Window-fastener.



PATENTED OGT. 10,1905;

A. ROSENBERG. WINDOW FASTENER. APPLICATION FILED JULY 7, 1905.

UNITED STATES PATENT orrica.

ADOLPH ROSENBERG, or CHICAGO, ILLINOIS.

WINDOW-FASTENER- Specification of Letters Patent.

Patented Oct. 10, 1905.

Application filed July 7,1905. SerialNo. 268,620.

, Fastener, of which the following is a specification.

My present invention constitutes an improvement upon .thewindow-fastener described in my pending application, Serial No. 237,835,filed December 21, 1904:.

My primary object is to make provision for the automatic locking of thewindow at any position within the limits of operation of the fastener,as well as for greater security of the fastener.

The invention is illustrated in its preferred embodiment in theaccompanying drawings, in which Figure 1 is a broken elevational view ofa window equipped with my improved fastener; Fig. 2, a broken plansection taken as indicated at line 2 of Fig. 1; Fig. 3, a brokenvertical section taken as indicated at line 3' of Fig. 1; Fig. 4, aninner face view of the keeper, showing the head of the bolt entered inthe keeper; Fig. 5, a perspective View of the bolt and its casing; Fig.6, a perspective View of a fastening-plate for the bolt-casing; Fig. 7,a broken perspective'view of the bolt; Fig. 8, a section taken asindicated at line 8' of Fig. 3,-the bolt being secured, however, in suchposition as to enable it to slide within the keeper as the window isopened for ventilating purposes; and Fig. 9, a section taken asindicated at line 9 of Fig. 3.

1n the construction shownA represents a window-frame; B, a lowerwindow-sash; C,

an upper window-sash; D, the keeper of my improved fastener applied tothe upper sash,

and E the bolt of the fastener, movable in a casing E, adjustablyconnected with a sashplate E applied to the upper surface of the lowersash.

The keeper. is of elongated form and preferably is applied to the innersurface of a vertical member of the upper sash adjacent to the partingstop a of the window. When stamped from sheet metal, it preferablycomprises, as shown, a bottom or inner plate d and a thinner top plate03'. This is for convenience of manufacture. The two plates are firmlyconnected by rivets (1 so that the keeper virtually is integral instructure. The inner platethat is, the one next 'to' the sash has a widelongitudinal slot (i at one lateral wall of which are teeth d. The plated has a superposed narrower slot (i thebordering metal forming flangesd, beneath which the head of the boltmay pass. When the keeper isappliedto the sash, the space represented by the slot d virtually formsa chamber for the head of the bolt. At the upper end of the slot (i is aV-shaped recess dbfor receiving and preventing injury to thelocking-point on the head of the bolt under con-. ditions, hereinafterdescribed, and near the lower endof the slot d is a socket or enlargedopening d, which is formed by cutting the flanges 03 to permit thebolt-head to enter. "At the lower end of the socket there is a shoulder(2, which projects slightly above the adjacent external surface of thekeeper and is 1 internally beveled at d, serving the function ofinsuring that the bolt shall enter the socket when the window is beingclosed from a wideopen position. The keeper is. provided withperforations at, through which pass screws d, (one shown,) securing itto the sash.

The bolt E comprises a stem 6. equipped at its inner end with anelongated head e and provided at its outer end with'a thread 6 and ahandle or winged put a", threaded to'turn upon the thread 6 and equippedwith an inwardly-extending sleeve e, bearing against the outer end ofthe bolt-casing. A cotterpin limits the outward movement of the handlewith relation to the stem upon which it is threaded.'. The bolt isencircled within the casing by a spiral spring e, having one endconnected with the casing and the other with a pin a, passing throughthe bolt, so that the spring tends both to press the bolt inwardlytoward the sash and to rotate the bolt on its axis. The bolt-head has atoothengaging point e and a wall-engaging point e", and the springnormally turns the bolt to a locking position, such as is indicated inFig.

4, with the head confined between the teeth and the opposite wall of theslot 03 vThe bolt-head also has a beveled surface 6 which engages thebeveled surface (1 to insure the automatic entrance of the bolt at thesocket d when the window is closed from a wideopen positionif As shown1n Fig. 9, the pin e serves by en.

gageinent with the walls ofthe casing to limit I the rotation of thebolt. vided with a longitudinal groove e, in which is confined by-a ring6 a slide e, equipped with a finger-piece e. The casing E has adjacentto the bore which receives the bolt a The sleeve 6 is pro-- perforationfor receiving the slide c. When the handle a is turned to its limit tothe left, as viewed in Fig. 1, the channel '6 registers with theperforation e and the slide may be shoved in to key the sleeve to thecasing, thereby securing the bolt in its angularly- .retracted position,permitting the window to ceiving screws a, providing for adjustment.

The plate E has a downturned perforate lug e receiving a horizontalsecuring-screw e. As the screws 6 pass also into the wood, it is evidentthat the bolt-casing is very securely fastened to the sash, preventingthe possibility of prying the casing loose. The spaces between theperforations in the flanges e vary, and the pair of screws a may passthrough any selected pair of perforations, thus providing for adifferential adjustmeht enabling the greatest accuracy to be observed inadjusting the bolt with relation to the keeper.

The operation may be summarized thus: Assuming the window to be wideopen, it may be closed without regard to the fastener, the bolt ridingfreely over the keeper until the socket is encountered, whenthe boltenters the socket and becomes engaged with the lowermost lockingshoulder of the 61 series, (indicated by g.) lln this position thesashes may be drawn together firmly by turning the nut e to the right.The bolt may be turned to the left against the force of its spring andthe sashes adjusted to any desired degree of opening, the bolt rotatingimmediately upon release to the locking position. If desired, the catch6 may, be employed to hold the bolt in its angularly retracted orrotated position, thus enabling the window to be opened within thelimits of the fastener without the necessity of holding the bolt byhand. Of course the nut may be turned to the right to bind the sashestogether at any desired degree of opening. When desired, the bolt may beforcibly withdrawn from the opening d, in which case the bolt will rideupon the keeper as the sashes are moved with relation to each other,permitting the window to be thrown wide open.

An important feature of the construction is that the bolt passes fromthe upper end of the keeper to the lowermost locking position withoutleaving the keeper, thus obviating danger of tampering with the device.Furthermore, the device operates automatically at alltimes to efliect alocking engagement regardless of the position from'which the window isclosed.

semen engage therewith, and a spring connected with the bolt and servingboth to force it inwardly longitudinally and rotate it on its axis,whereby automatic locking is efiected, for the purpose set forth.

2. In a window-fastener, the combination of a chambered slotted keeperhaving a plurality of internal lateral teeth and provided with a socketwhereat. a bolt-head may enter, and a spring projected and rotated bolthaving a tootheengaging shoulder, for the purpose set forth. a

- 3. Tnawindow-fastener,thecombination of a keeper having a chamberequipped at one lateral wall with locking-shoulders and having theopposite wall smooth, said keeper having a slot for the shank of a boltand flanges bordering said slot, and a spring projected and rotated bolthaving a head adapted to move in said chamber and equipped with alocking-shouldenthe bolt being normally rotated by its spring intolocking engagement, for the purpose set forth.

4. The combination ofan elongated keeper having a sloping surface at itsupper end and provided with a longitudinal slot having a shoulder at itsupper end and an enlarged opening a short. distance above its lower end,

"said keeper having a lateral internal lockingshoulder beneath saidenlarged opening, and a spring projected and rotated bolt having a headadapted to enter the'keeper at said en-' larged opening and providedwith a lateral locking-shoiilder, for the purpose set forth.

5. The combination of a chambered, slotted keeper'having aslopinge'xternal surface at its upper end and provided with a pluralityof internal teeth at one side of its chamber and with an enlargedopening near the lower end of its slot, one of said teeth being belowsaid enlarged opening, a bolt having a head provided with a lateraltooth-engaging shoulder, a bolt-casing, and a' spring connected withsaid bolt and casing and serving both to rotate and project the bolt,for the purpose set forth.

6. The combination of a chambered, slotted keeper having a slopingexternal surface at its upper end and having above its lower end anenlarged opening and beneath said opening a locking-shouldercorresponding with the closed position of the window, means on saidkeeper projecting above' the face thereof for engaging-a bolt-head anddirecting it into said enlarged opening when thewindow is being closedfrom a wide-open position, and

' a spring-projected headed bolt coacting with said keeper, for thepurpose set forth, v

7 The combination of a chambered, slotted keeper provided with anenlarged opening above the lower end of its slot and with aninternally-beveled projection at the base of said opening, and aspring-held bolt having a head provided with a beveled surface adaptedto engage said projection when the window is closed from a wide-openposition, for the.pur-

pose set forth.

8. The combination of a keeper provided with laterally-presented teeth,a bolt-casing, a bolt having a head equipped with a lateral tooth,a'spring connected with said bolt and casing and serving both to projectand rotate the bolt, and a handle having a bearing on the bolt-casingand threaded connection. with the bolt, for the purpose set forth.

9. The combination of a keeper provided withlaterally-presented teeth, abolt-casing, a bolt having a head equipped with a lateral tooth, aspring connected with said bolt and casing and serving both to projectand rotate.

which may be employed at'will, for restraining the bolt fromrotationduring its longitudinal movement, for the purpose set forth 11. Thecombination with akeeper and'bolt,

of a bolt-casing equipped with horizontal and I vertical attachingmeans, and vertical and horizontal attaching-screws, for the purpose setforth.

12. The combination with a keeper and bolt,

of a bolt- -'casing equipped with horizonal flanges each provided with aseries of perforations, a sash-plate having a guide for said flanges andequipped with a plurality of pairs of perforations unequally spaced, andattaching-screws, for the purpose set forth.

13. The combination with a keeper and bolt, v 'of a bolt casing equippedwith outturned flanges provided with perforations, a sashplate equippedwith inturned flanges provided with perforations and having a downturnedouter end provided with a perforation, and vertical and horizontalattaching-screws, for the purpose set forth.

14.. The combination of a'chambered, slotted keeper equipped withinternal lateral teeth and having an internal V-shapednotch at the upperend of its chamber, and a spring rotated and projected bolt having ahead provided with a lateral tooth, for the purpose set forth.

15. The combination of achambered keeper provided with a longitudinalslot closed at its upper end and having an enlarged opening near thelower end ofthe keeper and an internal locking-shoulder adjacent to saidenlarged opening with bolt-engaging flanges adjacent to saidlocking-shoulder, and a bolt equipped with a head-slidingly engagingsaid flanges and adapted to engage said locking-shoulder,

said locking-shouldercorresponding with the clo sedposition of thewindow and engagement between the same and the bolt being efi'ectedwithout withdrawal of the bolt from thekeeper when the window is closedfrom the ventilating position, for the purpose set forth.

I I Y ADOLPH ROSENBERG.

In presence ofr v I l L. HEISLAR,1

J. H. LANDES.

